Characterizing symptom burden in knee osteoarthritis: the predominant role of Kellgren-Lawrence grade 4 in functional decline and pain severity.
Knee osteoarthritis (KOA) causes pain, functional impairments, and sleep disturbances. This study aimed to assess differences in pain pattern, insomnia, function, and muscle strength across Kellgren-Lawrence grades in patients with KOA. In this cross-sectional study, 82 patients…